Moeller LE4
Expansion Modules

For PS4 PLC or EM4 Expansion

Depending on the PLC used, up
to 6 LE4 local expansion modules can be simply plugged into
the base unit, i.e. PS4 or EM4. In this way, the controllers
can be expanded, locally as well as remotely, by additional
digital or analog inputs/outputs, counters, and also network
interfaces.

LE4
Modules are designed as local expansions for the PS4
controllers and EM4 modules. They record signal states and
control actuators. The master modules can be used to
configure a bus system consisting of several stations. A PS4
controller can be connected to the bus system via the slave
modules

LEs can only be installed at specific
positions depending on their particular
function. The position numbers "1" and
"2" indicate which LE can be used at
which position. Ensure that the current
balance is maintained.